Chain saw guard



FIG. 1 is a side view of a chain saw guard showing my new design, thechain saw being shown in broken lines for illustrative purposes only;

FIG. 2 is a top view thereof on an enlarged scale;

FIG. 3 is a bottom view thereof on an enlarged scale;

FIG. 4 is a front view thereof on an enlarged scale;

FIG. 5 is a rear view thereof on an enlarged scale.

The ornamental design for a chain saw guard, as shown and described.